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19min chapter
Richard Ellis: When Galaxies Are Born: The Quest for Cosmic Dawn (#337)
Into the Impossible With Brian Keating
Advancements in Telescopes and Observational Astronomy
This chapter explores the evolution of telescopes, from old-fashioned photography to digital detectors, and the advancements made in observational astronomy. It discusses the use of robots, multi-object spectroscopy, and hydrogen absorption to measure galaxies. The chapter also delves into finding the most distant galaxies using techniques like the Hubble Ultra Deep Field image and gravitational lensing, as well as the progress made with the James Webb telescope.
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